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1、Unit4 Topic3 Section CThe main activity is 1a.Teaching aims and demands.1. Learn a new words Strom2. Learn some useful sentences.(1) Its diameter is 53% as wide as that of the earth.(2)It has been two days since we landed on Mars.(3)It is six weeks since we had a proper shower.3. Learn something mor
2、e about MarsStep1师生共同谈论理想，并探讨火星等太空知识，导入新课。T：Morning , boys and girls!Ss：Good morning, madam!T：What are you going to be when you grow up，S1?S1：Id like to be a teacher.T：A good job, what about you, S2?S2：I want to be an astronaut. I can travel to space by spaceship and discover something new about spa
3、ce.T：what a great dream! Our county has launched three manned spaceships. In 2007,we sent up our countys first lunar probe. In the future, the astronauts from China will fly to Mars to explore it. They will discover something new about it.Do you know anything about Mars?Ss: No.T: Ok. Lets learn it f
4、rom section C.Step2利用图片，导入生词学句，然后设置听力问题，提高学生的听力。最后，让学生研究1a，引导学生发现文中疑难点并相互讨论解决，教师做补充讲解。1. （出示火星及罗马战神的图片，简单介绍火星，呈现部分生词）T：（指火星图片）This is a picture of Mars. It is the fourth planet from the sun in the solar system. It is named after Mars, the Roman godof war. It is much smaller than the earth. Its diame
5、ter is 53% of theearth.（板书并要求能理解Solar，了解 Roman，diameterSolarRomandiameterT：During spring and summar，strong storms cancover the whole surface of Mars. The gravity on its surface is about 40% as strong as it is on earth.（板书并要求能掌握 Storm，了解 gravity）T：Do you want to Know Something more about Mars?Ss：Yes.
6、T：OK. Please Listen to la to grasp the main idea of the text.2、（设置听力任务，让能带着问题听la录间，提高学生的听力）幻灯片出听力任务1、Whats reported?2、What does Mars look like?3、Whats the weather like on Mars?核对答案3、（让学生精读la，找出文中的疑难点，提高学生的阅读能力）T：Boys and girls, please read la carefully，Find out the difficulties and important express
7、ions.（板书学生提出的疑难点，先让学生互相讨论解决，之后教师分析并讲解）Its reported thatat a distance ofStep3通过复述及完成短文填空的方式，巩固la1、（让学生再读la，完成lb）T：Rced la again and finish lb（核对算案）2、（让学生根据关关键词复述la，加深理解，提高表达能力）T：Please retell the passage according to the key words on the blackboard . I will say the key words .You say Sentences togeth
8、er ,OK? Ss：OK！（板书关键词及短语）Mars, fourth, named .diameter ,a distance of, tell，because, bright red，ball, storms, gravity, temperature，oxygen, eight months，closest Searching for. T：Mars and fourth Ss：Mars is the fourth planet from the sun in our solar systemT：NamedSs：It is named after Mars, the Roman god
9、 of war3、出示幻灯片，完成对火星的介绍，巩固la内容Mars，the planet of the solar system，goes around the sun at a of about 228 million kilometers. Its is 53% as wide as that of the earth. It looks like a and ball. Its very beautiful. But during and ，Strong can cover the whole. of Mars. The gravity on the surface of it is
10、about as as it is on earth.Step 4小组活动，根据1C的问题，展开讨论，组成对话，然后导入并学习1、（两人一组讨论1C中的问题，并安排两或三组学生汇报，培养学生的自主学习和创新能力）T：We learned a lot from la about Mars just now. please discuss the following questions with your partner. Then make conversations in pairs. After that, Ill ask two or three pairs to act in front
11、 of the class.（三分钟后，让部分学生进行对话）T：Boys and girls, have you finished your discussion? S1 and S2, please!S1：Does Mars have a good climate for plants?S2：Of course not. Thats impossible.S1：Why?S2：Because the temperature on Mars is between138 and 28S1：Oh. I see . Is Mars a useful place to dry fruit?S2：No I
12、 dont think SoS1：Is Mars a good place for human beings to live?S2：No, because it is too cold for people to live on S1：The last question. Is Mars a comfortable place for heavy people?S2：I dont think So. Although the heavy people will be lighter on Mars, its not a comfortable place for them to live. D
13、o you agree with me?S1：Yes , I think So.（再让一组同学讨论，教师点评这两组同学的表现，并予以鼓励）T：OK，Both of the two pairs are excellent 2、（让学生听2的录音，然后回答问题）T：In dialog la, kangkang wants to be an astronaut when he grows up. He wants to do some research in space. Here is an e-mail from Mars .Lets listen to the tape, then answe
14、r the following questionson the small blackboard.（出示小黑板）who is this e-mail from and to?How long did it take them to get there?Did every thing go well during the journey?学生听完后，师生一起核对答案3、（再听2录音，完成2）T：Boys and gins, lets listen again and fill in the blanks in 2（学生做完后，核对答案）（让学生大声朗读课文2，加深对文章的理解）T：please
15、read the completed e-mail loudly. In addition , pick out the difficult points.（板书并要求学生理解）Limit（板书并解释）It has been two days since we landed on Mars It is six weeks since we had a proper shower 教师讲解这两种句型的用法，要求学生理解并模仿造句T：Now please make sentences according to the sentences on the blackboard. Who would like to make it first?S3：It has been two years since we leaned EnglishS4：It has been six months since we planted the trees around our school.S5：I
